Permutation-lock.



S. ZUNAC'.

PERMUTATION LOCK.

APPLICATION men Nov. n. 1,916.

1,238,617. Patented Aug; 28, 1917.

@MPM @Hopf @1:5

S. ZUNAC. 1

PERMUTATION LGCK. APPLICATION FILED Nov.17,191s.

Patented Aug. 28, 1917.

2 SHEETS-SHEET 2- :z zy. 5. A ffy, 4.

bolt, is withdrawn from containers in ceeds,

, which vention view t Uurriin STATES PATENT orrior..

s'rnvn anime, or" CQALDALE, PENNSYLVANIA.

rnnmu'rii'rioN-Locx.

To all whom it myconcem:

Be it known that l, S'rnvr: ZUNAG, a citizen'of the United States, residing at Coaldale, in the county of Schuylkill and State 5 of Pennsylvania, have invented certain new and useful Improvements in Permutation- Locks, of which the following is a specification.

The present invention relates to certain 10 new and useful improvements in push pin permutation locks, and has for its object to provide a device of this character which embodies novel features of construction whereby the locking member, such as a sliding operative position as the push pins are manipulated, no operation such as the turning of a knob subsequent to the manipulation of the push pins being necessary.

Further objects of the invention are to provide 'a device of this character which may be used with equal effectiveness upon large doors, Such as found upon vaults, or smaller doors, such as are found upon small the nature of safe deposit boxes. f

Another object of the invention is to pro-` vide a permutation lock which is simple an inexpensive in its construction, and which 30 can beeasily and quickly operated. t

With these and other ob]ets in viewnthe certain novel "combina" invention consists in tions and arrangements of the parts as will more fully appear as the description. prothenovel features thereof being pointed out in the appended' claims.--

For a full understanding of the in* ntion, reference is to be had to the following description and accompanying drawings, in

lock constructed in acc yrdance with the inthereto,"porti0ns being broken away.

Fig. 2 is a rear .elevation of the same,

showing the lock in an operative position. Fig. 3 is an edge view thereof. Fig. L1 is a ken on the line /tof the direction of thev arrows, 'the lookngvin 'mg shown in a partially raised tumbler b position.` Fig. 5 is a detail perspective view of the t 15ti1mbler and the trip plate carried thereby removed from the lock.

.instance they are rangement is the attractiveness of structign is shown .j in

transverse vertical sectional" v Fig.- 2, and

Patented Allg. 2s, 1917.

Application iledNovember 17, 1916. Serial No. 131,876.

Fig. 6 is a view similar to Fig. 4, showing a'modiication in the mounting of the push pins, the tumbler being removed.

Fig. 7 is a rear elevation of the arrangement shown by Fig. 6, the cover plate and springs being removed. I

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

It will be understood that this invention may be applied to either the movable or the stationary one of the two members to be locked together, and the operation of the lock is exactly the same whether used upon the stationary or the movable member; Rev ferring to the drawings, the numeral 1 esignates one of a pair of members to be locked together, and the numerals 2 a plurality of push pins which are slidably mounted in the member 1. It will be obvious that the push pins 2 may be constructed in any desiredfconfiguration, although in the. present shown as substantially diamond shaped. The pins 2 are `loosely mounted within correspondingly shaped openings 3 inthe member 1, the said'openings being so arranged as to form the outline ,of a diamond. One 'object of this arto economize in the space cofialthough it also adds'to the lock. The exposed ends of the pins are designed to carry some suitable and. varied inscriptions or characters, and in the, present instance each pin bears a different number, although it will be obvious that letters or other 'characters may be substituted for the numbers. While not necessary, it is desirablev to provide'the pins with interchangeable heads or faces, so as to rovideg 'means ,for readily changing the combination of the lock. One possible conv sumed by the pins,

wherein the numer'a 4 designatessimilartol the shell of the ordinary typewriter key, the said shell having arrang therein an inscription carrying disk glass or mica plate-6 arranged thereover'so from defacement# rovided with a threaded stud 7 adapted to t within openm 8 in pins 2. With struction it will be seen that the combina-- tion of the lock maybe easioly and agi@ y, changed'by simply interchanging t e re.

detail by Fig. 4,' a shellv this con-i' should a wrong pin be operated and strike movable heads or faces on the push pins. The member 1 is provided on its inner side with a recess 9 with which the openings 3 in which the push pins are mounted com municate. Each of the push pins is provided at an intermediate point in its length with a flange 10, which is adapted to abut against the base of the recess 9 to prevent the pins 2 from being forced outwardly through the member 1 from the inside there of. A cover plate 11 normally closes the recess 9 in the member 1, the said cover plate being provided with openings 12 adapted to receive the cylindrical reduced portions 13 upon the inner ends of the push pins 2. Coil springs 1l surround the said cylindrical reduced portions of the pins and-are interposed between the inner side'of the cover plate 11 and the flanges 10, so as to normally force the pins outwardly. The eX- treme inner ends of the reduced cylindrical portions 13 of the push pins which project through the cover plate 11 are rounded or beveled. as indicated at 15, so as to coperate with the beveled face 16 ofa tumbler 17 which is pivoted upon the cover plate l1, by means of a pivot bolt 18.

The tumbler 17 is clearly indicated by Fig. 5, and is adapted to swing across the inner ends of the push pins 2 about its pivot bolt 18. This tumbler 17 comprises a bar of any desirable material, preferably steel, and is provided for a portion of its length on the side thereof adjacent the push pins 2 with the beveled or inclined surface 16 above mentioned. lVhen one of the push pins 2 is forced inwardly against the action of the spring 14 and its rounded end 15 engages the beveled or inclined surface 16 on the tumbler 17 at the proper point, it will be obvious that the tumbler will be swung upwardly a certain distance about its pivot bolt 18, and that when another pin at a higher elevation is forced inwardly and engages the inclined surface 16, the tumbler will be swung still higher about its pivot bolt 18. However, only certain pins will engage the inclined surface at the proper point to raise the tumbler in the required manner, and these pins must be operated in the proper succession. It will be clear therefore from the above explanation that these certain pins form the combination of the. lock, and that this combination must be known before the lock can l be successfully operated. A guide bolt 19 is arranged on the outside of the swinging end of the tumbler 17 and is supported by eye brackets 20 secured to tlie cover plate 11. The object` of this guide bolt is to prevent the tumbler from being sprung outwardly the tumbler at a wrong surfac'el.

It is necessary that the tumbler 17 be tempoint on the inclined porarily locked in each successive position to which it is raised by the operation of the successive pins, and for this purpose the swinging end of the tumbler is provided with a longitudinally projecting pin 21 which is adapted to engage the teeth 22 on a. ratchet bar 23 arranged adjacent the swinging end of the tumbler. This ratchet bar 23 is pivotally mounted at 4its upper end, as indicated at 24, to an outwardly projecting bracket 25 rigidly secured to the cover plate 11. A spring wire or strip 26 has one end thereof rigidly secured to the cover plate 11, while the other end is pivotally connected at 27 to the ratchet bar 23, the object of said spring 26 being to normally hold the ratchet bar in engagement with the pin 21 on the tumbler 17. The lower end of the ratchet bar 23 is loosely mounted within a guide loop 28 which projects outwardly from the cover plate 11, the object of said guide loop being to limit the swinging movement of the ratchet bar about its pivot and to prevent displacement thereof beyond thc end of the pin 21. As the tumbler is raised by the action of one of the pins on the inclined surface 16 thereof. the pin 21 forces the ratchet bar 23 outwardly about its pivot and against the action of the spring 26, until the tumb1 er has been raised to the limit possible by that particular pin, when the pin 21 engages the nearest tooth 22 on the ratchet bar, theA spring 26 holding the ratchet bar in close engagement with the pin 21. The tumbler 17 is thus temporarily supported in this position until the operation of the next proper pin, when the pin 21 will slip upwardly by the teeth 22 of the ratchet bar until the tuinblei; is raised to the limit of this pin, when it will again engage one of the teeth on the ratchet bar 23. Thus the tumbler 17 is temporarily locked in its successive positions until it is raised to the point required to operate the locking member.

While the tumbler can be successfully operated only by manipulation of the proper push pins 2 in the required succession,

means have been provided to further increase -the required succession and then a wrong pin manipulated. A trip plate 29 is pivotally mounted upon the outside of the tumbler 17, the said plate being arranged in a substantially vertical plane and extending the full length of the inclined surface 16. This plate 20 extends vertically downward at 29 to a distance below the lower ed e of the inclined surface 16 slightly greater t n the diameter of the reduced cylindrical portions 13 of the push pins 2, and is then offset laterally and inwardly at 29b to a short distance from the rounded ends of the push pins, and then vertically downwardly at 29. The vertical portion 29c is4 adapted to swing across the plate to tumbler is 'by the operation of a'wrong pin, the -rratchet bar 23, will be forced outwardly7 from engagement with the pin 21 on the tumbler 17 by the arm 30, thereby allowing the tumbler to fall back into its original position.

In order to operate the locking member to withdraw it from operative position as the push pins are manipulated, the tumbler 17 is vprovided at a point between its pivot and its free end with a downwardly projecting arm 32. The outer end of this arm 32 is pivotally connected at 32 to one end,

of a link 33, the opposite end of the said link 33 being pivotally connected at 34 to one end of a lever 35 which is pivotally connected at an intermediate point in its length by a pivot bolt 36 to the cover plate 11. The opposite'end of the said lever 35 is pivotally connected at 37 to a link 38 which is also pivotally connected at 39 to the base of a U-shaped sliding locking bolt 40, the arms 41 of which projectoutwardly 4from the edge of the door to form in effect two locking bolts. The said locking bolt 40 is slidably mounted Within a recess` 42 formed on the inner. face of the member 1, and the cover plate 11 serves to hold the locking bolt 40 Within the recess 42. The tumbler 17 link 33 and lever 35 are all arranged on the outside of the cover plate 1l, and a slot 43 is formed in the cover accommodate the pivot 39 connecting the link 38 to the locking bolt 40. Springs 44 have one end thereof connected to the locking bolt 40 and the other end thereof to the member 1, the said springs serving to normally force the locking bolt 40 into locking position and in turn normally forcing the tumbler 17 into its lowermost position through the medium of the link' 38, lever 35, link 33, and the arm 32 rigidly connected to the tumbler.

lVhen the lock is used Aon large will be seen that the lock may be operated from either side of the door, and in order to facilitate the unlocking of the door from the inside thereof, aknob 45 is applied to the free end of the tumbler 17. When the A raised the locking bolt is simultaneously withdrawn through'the action of the leverage above described. i" l In Figs. 6 and 7 of the drawing,

a midified construction of doors, itv

mounting forV the push i exactly as previously described, with the exception that the flanges 10 are om'rtted, and` each of the pins is provided with an' elongated slot 46 adapted to receive a wire or rod 47. With reference to Fig. 7, it

will be seen that'tlie wires or rods 47 pro.

ject diagonally through the various rows of pins 2, one wire being provided for keach row,- and the opposite ends of the wires being secured to the base of the recess 9 in the member 1, by means of screws 48. This constructionis merely a substitution for the ianges 10 to hold the pins 2 in position within the openings 3 in the member 1. The springs 14 act in exactly the same manner as previously described and the cylindrical reduced portions 13 project through the openings 12 in the cover plate'll as previously explained. y

As has been previously described,l one -pins is illustrated. The ypins are formed means for changing the combination of the Y lock Ais to interchange the removable heads or faces on the push pins 2, andv another means isfto change the pivot point of the tumbler 17 For this purpose the cover plate 11 may be provided with a plurality of extra threaded openings 49 in which the pivot bolt 18 may be inserted in order to change the pivot bolt of the tumbler 17. To accommodate the changes of the pivot point of the tumbler, the link 33 and lever 3 5Y are provided with a plurality of extra openings 50 to accommodate the pivot bolts 34 and 36.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent, is

1. A permutation lock including a plurality of push pins mounted within one of a4 -pair of members to be locked together, the said push pins being provided with beveled inner ends, a tumbler having one end thereof pivotally connected to the said one nection between the locking member and the tumbler.

42. A permutation lock including a pluralityof push pins mounted within one of a pair of members to be locked together, the said push pins being provided 'with beveled inner ends, a' tumbler having one end thereof pivotally connected to the said one of a pair of members to be locked together and having an inclined surface adapted-to cooperate with the beveled ends o certain of the push pins to swing the tumbler about its pivot, a rack bar adapted to engage the tumbler to temporarily lock the same in the positions to which it is moved by the push pins, means actuated by certain of the other push pins for forcing the rack bar from engagement with the tumbler thus allowing the same to assume its original position, a locking member, and an operative connection between the locking member and the tumbler.

3. A permutation lock including a plurality of push pins mounted within one of a pair of members to be locked together, the said push pins being provided with beveled inner ends, a tumbler having one' end thereof pivotally connected to the said one of a pair of members to be locked together and having an inclined surface adapted to cooperate with the beveled ends of certain of the push pins to swing the tumbler about its pivot, a rack bar adapted to engage the tumbler to temporarily lock the same in the positions to which it is moved by the push pins, a trip plate mounted upon the tumbler and engaging the rack bar, the said trip plate being adapted to force the rack bar from engagement with the tumbler when certain of the other push pins are manipulated, a locking member, and an operative connection between the locking member and the tumbler.

4. A permutation lock including a plurality of push pins mounted within one of a pair of members to be locked together, a tumbler adapted to be actuated by certain of the push pins into various successive positions, means for temporarily holding the said tumbler in each of the said successive positions to which it is moved by certain of the push pins, a trip plate pivotally mounted upon the tumbler and engaging the said means for holding the tumbler in the successive positions to which it is moved by the push pins, the said trip member being adapted to be engaged by certain of the other push pins to force the said holding means for the tumbler from engagement therewith, a locking member, and an operative connection between the locking member and the tumbler.

5. A permutation lock including a plurality of push pins mounted within one of a pair of members to be locked together, a tumbler adapted to be actuated by certain of the push pins into various successive positions, a pin projecting from the tumbler and rigid therewith, a ratchet bar pivotally mounted at one of its ends to the said one of a pair of members to be locked together and normally engaging the said pin on the tumbler to support the tumbler in its successive positions, a trip plate pivotally mounted upon the tumbler, an arm project- G. A permutation lock including a plurality of push pins mounted within one of-a pair of members to be locked together, a tumbler pivoted at one of its ends to the said one of a pair of members to be locked together and adapted to be swung about its pivot by the said push pin, an arm rigidly connected to the said tumbler and projecting laterally therefrom, a lever ivotally mounted between its ends to the said one of a pair of members to be locked together, a link connecting the said laterally projecting arm on the tumbler to one end of the said lever, a sliding locking bolt, and a link member connecting the said locking bolt to the opposite end of the said lever.

7. A permutation lock, including a plurality of push pins mounted within one of a pair of members to be locked together, said push pins having beveled inner ends, a tumbler comprising an elongated bar pivotally secured at one end thereof to the said one of a pair of members to be locked together, said tumbler bein provided with a continuous and longitu inally extending inclined surface adapted to be engaged by the beveled ends' of the said push pins to actuate the tumbler about its pivot, and locking means coperating with the said tumbler.

8. A permutation lock, including a plurality of push pins mounted within one of a pair of members to be locked together, said push pins having beveled inner ends, a tumbler comprising an elongated bar pivotally mounted at one end thereof to the said one of a pair of members to be locked together, said tumbler being provided with a continuous and longitudinally extending inclined surface adapted to be engaged by certain of the push pins to actuate the tumbler about its pivot in one direction, means actuated by certain of the other push pins for forcing thotimbler about its pivot in the opposite direction, and locking means coperating with the tumbler.

In testimony whereof I aix my signature in the presence of two witnesses.

STEVE ZUNAC.

Witnesses PAUL SKRABAK, L. E. Smonlron.

copies of this patent may be obtained for ve cents euch, by addressing the Commiusloner of Iatzmtsf 'Washington D. 0. 

